Center Drain LOCATION Grid dimension: 26-1/16" X 14-1/16" for your sink bottom with Corner Radius 3-1/2" Sink grille: 304 Premium stainless steel construction with light weight design to ensure durability and user-friendliness at the same time How to Measure the Correct Size of Your Sink Grid: You Have To Measure Inside 1" from the bottom of Your Sink to Get the Right Size of Grid. Not Top Inside of Sink Please refer to the video shown at the bottom of the product picture display for more detailed info on measuring your sink to fit our grid. This info is VERY important and could save you a lot of time if ordering a wrong grid can be avoided.